Improvement in lamps for burning naphtha-gas



W. w. AUSTIN. LAMPS FOR BURNING NAP'IHA GAS.

Patented Aug.14,1877.

UNITED STATES ATENT i, Cruce.,

WILLIAM W. AUSTIN, 0F LOWELL, MASSACHUSETTS.

IMPROVEMENT IN LAMPS FOR BURNING NAPHTHA-GAS.

Specification forming part of Letters Patent No. 194,12 h, dated August 14, 1877 p application liled July 1S, 1877. V

To all whom t may concern.-`

Beit known that I, WILLIAM W. AUSTIN, of Lowell. in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Lamps for Burning NaphthaGas; and that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, making a part of this specitication, in which the improved lamp is represented in vertical section.

My invention relates tok lamps for burning naphtha-gas, in which the liquid`,naphtha is contained in a reservoir, and its surface is exposed to a continuous current of air, that thus becomes loaded with the vapor of the hydrocarbon, and is then conducted to the burner. Lamps of this class are generally too cumbersome and unsightly to submit a large surface of the liquid to the action of a current of air. Another defect in such lamps is due to the readiness with which naphtha used in them will catch lire if spilled within a short distance of a flame, as when a lamp is upset, or otherwise.

The object of my invention is to remedy these defects. f

It consists in forming within the body of the lamp a series of shallow reservoirs, placed one above the other, having short open tubes passing through the bottom of each, and extending' downward a` short distance more than they project above the bottom of each reservoir, so that noue of the naphtha will escape from 011e reservoir to the other it' the lamp should happen to be upset or turned upside down.

lt also consists in said lamp provided with means for taking the air loaded with naphtha from the bottom of the lamp-stand, or from a point lower than the burner, through a pipe located within the lamp-stand, and issuing from it at or about 4the height oi' the burner.

It also consists in details of construction that will be described hereinafter.

In the drawings, A represents the shell of a lamp-stand, made of metal. This stand is formed in truncated, conical, or bel1-shaped sections, united at their widest part by lianges or soldering. Each section is divided by vhorizontall partitions B, soldered all around to the inside, so as'to be water-tight and form reservoirs for the naphtha.

Each partition B has a vertical pipe, b, open edge of the under pipe and flow in the next reservoir above it. These pipes b should be located centrally, or nearly so, through each partition, so that any rolling ofthe lamp willV not change the level of the naphtha in its relation to the pipes and to safety from overflowing.

The top of the lamp-stand is closed -by a cap, B', either soldered on or screwed on with a suitable Washer. It has a pipe, b', through which the hydrocarbon can be introduced while lling the lamp, and through which the atmospheric air enters when the lamp is in use.

The pipe b can be connected by a flexible tube to anordinary gas-burner or gas-pipe, and gas be supplied to the lamp in place of atmospheric air.

Within the lower half of the lamp-stand is a vertical pipe, C, extending upward from'the lower reservoir to any suitable height for the location of the burner. It is then bent at G1, and'issues from the lamp-stand, where it is connected, by the bent pipe orbracket U2, to the burner D, which is, preferably, an Argand burner, the tlow of gas being regulated by a cock, d, placed below the burner.

The operation of this lamp is as follows: The naphtha is poured in the lamp -stand at the top B', and partly lls the rst reservoir l. Then`it overflows through theV pipe b to the reservoir 2, and partly fills it, until, in its turn, it overllows through its pipe Z1' to the next reservoir, 3, under it, and thus each reservoir becomes, in succession, filled level with the top of its pipe b until it. reaches the bottom ofthe stand, where any excess can escape through the overfiow-pipe E when the cock e is left open while filling the lamp, or immediately after it is filled.

The pipe C may pass through the overowpipes, as at f, made of suitable size for the purpose, or through independent sleeves, extending upward and downward, as the pipes b.

By attaching a loop at the top of the lamp it may also be suspended as a gasalier.

Having now fully described my invention, I claim- 1. The body or stand of a lamp, formed with a series of shallow reservoirs placed within it, one above the other, each having a short tube passing through the bottom of said reservoirs, and extending downward slightly more than the tube of the next reservoir under it projects upward, substantially as and for the purpose described.

2. In combination with thepstand of a lamp and its internal shallow reservoirs, placed one WILLIAM W. AUSTIN.

Witnesses:

E. E. MAssoN, JOHN H. BROWN. 

